A family friend bought an 1865 farmhouse in the Northern Neck area of VA. This thing is on the front door at the bottom on the interior. The local locksmith says “I’ve never seen one of those”!
Thanks. I’ll have to check it out some more. It’s a French door that’s hardly ever used. You can see it’s been painted shut in the past. Robbies probably right. It’s a quirky old house.
Sorry I don’t have a better picture and it’ll be a long while before I get back down there. I would’ve expected the local locksmith to know if it was a doorstop or latch. My friend was told many homes of that era had no way to lock the door when the residents left.